CN1806143A - T-type branching joint - Google Patents
T-type branching joint Download PDFInfo
- Publication number
- CN1806143A CN1806143A CNA2005800004976A CN200580000497A CN1806143A CN 1806143 A CN1806143 A CN 1806143A CN A2005800004976 A CNA2005800004976 A CN A2005800004976A CN 200580000497 A CN200580000497 A CN 200580000497A CN 1806143 A CN1806143 A CN 1806143A
- Authority
- CN
- China
- Prior art keywords
- person
- arm portion
- type branching
- plat part
- branching joint
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L41/00—Branching pipes; Joining pipes to walls
- F16L41/02—Branch units, e.g. made in one piece, welded, riveted
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L41/00—Branching pipes; Joining pipes to walls
- F16L41/02—Branch units, e.g. made in one piece, welded, riveted
- F16L41/021—T- or cross-pieces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/02—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal by folding, e.g. connecting edges of a sheet to form a cylinder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D51/00—Making hollow objects
- B21D51/16—Making hollow objects characterised by the use of the objects
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Branch Pipes, Bends, And The Like (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
Brazing strength of a T-type branching joint (1) of a type produced by press forming is increased. In addition, each pipe (P) can be separately brazed to a main tube section (11) and a branch tube section (12) to enhance workability of brazing. To achieve the above, the joint has an engagement claw (14). The engagement claw (14) engages flat plate sections (13) to each other, the flat plate sections (13) being superposed on each other at a corner between the main tube section (11) and the branch tube section (12).
Description
Technical field
The present invention relates to a kind of T type branching joint, particularly makes the T type branching joint of type about extrusion modling.
Background technique
Up to now, the T type branching joint that pipe arrangement is used generally is to use the moulding of plumbous protuberance to make.But the T type branching joint of Zhi Zaoing exists the high problem of manufacture cost like this.
Therefore, motion the structure T type branching joint (with reference to patent documentation 1) made by extrusion modling of the sheet material of available copper coin etc.This T type branching joint is represented to Fig. 8 (C) with Fig. 8 (A).Fig. 8 (A) is an elevation.Fig. 8 (B) is a side elevational view.Fig. 8 (C) is the central longitudinal sectional drawing.
This T type branching joint 100, have two ends comprise pair of openings person in charge portion 101, with the arm portion 102 of person in charge portion 101 orthogonals.Person in charge portion 101 and arm portion 102 are to be rolled into by one piece of sheet material, and are formed by connecting along the overlapping two end part, plane by person in charge portion 101 center lines and arm portion 102 center lines.
This T type branching joint 100, the section configuration of person in charge portion 101 is approximated to the U type at central position (middle position of the person in charge portion 101) section by arm portion 102, and person in charge portion 101 end positions sections are approximated to the C type.Bight between person in charge portion 101 and arm portion 102, the overlapped in twos formation plat part 103 of the corner portion of sheet material.And above-mentioned T type branching joint 100 inserts under the state of pipe P in person in charge portion 101 and the arm portion 102, comprises the superposed surfaces of above-mentioned plat part 103 interfaces
No. 2660427 communique of (patent documentation 1) patent
(inventing problem to be solved)
But, in the structure of Fig. 8, because influencing superposed surfaces and can't being adjacent to of the elastic after effect after the extrusion modling leaves the gap.For this reason, scolding tin can not enter the slit between the superposed surfaces equably during welding, might reduce weld strength.Like this, particularly under the situation of the pipe P that high pressure refrigerants such as welding coolant piping flow, confidential relation is arranged with coolant leakage.
Also have, in the above-mentioned T type branching joint 100, if just earlier joint 100 is made finished product, will be solidified into thin pearl and give prominence at the inner face welding consumables of person in charge portion 101 and arm portion 102, just can't connect pipe P, connect pipe P one by one on the T of extrusion modling type branching joint 100, become big in the gap that has connected other joint under one the state, T type branching joint 100 deforms.Therefore in the record of patent documentation 1, welding, when connecting pipe P and joint 100,3 places of person in charge portion 101 and arm portion 102 all insert pipe P and weld together and be necessary.But in the situation about must weld together, operation is bad in some cases also has.
Summary of the invention
The present invention, in view of such problem points is invented, its purpose be to improve by extrusion modling only the weld strength of T type branching joint in, also improve person in charge portion and arm portion and make and weld each pipe arrangement respectively and become possible weld job.
(for solving the method for problem)
The present invention makes in the T type branching joint of type in extrusion modling, is provided with the elastic after effect after the connection pawl 14 that connects plat part 13 suppresses extrusion modling, can prevent that thus the gap between the superposed surfaces from increasing.
Specifically, the 1st invention, be with have person in charge portion 11 that two ends are pair of openings and with the arm portion 12 of person in charge portion 11 orthogonals in, crooked sheet material 1a, along the two ends of the overlapping sheet material in plane of center line by person in charge portion 11 and arm portion 12 center lines in conjunction with forming person in charge portion 11 and arm portion 12, bight in person in charge portion 11 and arm portion 12, the T type branching joint of the overlapped in twos formation plat part 13 of corner portion of sheet material 1a is a prerequisite.
And this T type branching joint has also that to make overlapped plat part 13 superimposed engagement pawls be feature.
In the 1st invention, by the T type branching joint with one piece of sheet material 1a extrusion modling formation, the plat part 13 that the bight between person in charge portion 11 and arm portion 12 is overlapped is by the superimposed state of engagement pawl 14.Therefore, can resist the elastic after effect after the extrusion modling, can make between the superposed surfaces gap minimum and keep certain.For this reason, flow into equably to above-mentioned gap welding consumables during welding and solidify, can make welding quality stable.Also have, even if one one ground welding pipe P, because by engagement pawl 14 plat part 13 that is being superimposed with each other, joint can not be out of shape.
The 2nd invention is in the T type branching joint of the 1st invention, be with engagement pawl 14, when being formed on a side of overlapped plat part 13, turns back along the opposite side of this plat part 13, thus, forms the feature that is configured to of superimposed two plat parts.
In the 2nd invention, the engagement pawl 14 that will form along one of overlapped plat part 13 turns back superimposed two plat parts 13 along another surface of plat part 13 again.And thus, can prevent elastic after effect after the extrusion modling.
The 3rd invention is in the T type branching joint of the 2nd invention, is tip with the straight line of the tip of the tip that connects person in charge portion 11 and arm portion 12, and to be formed on the subtriangular zone that this ora terminalis line and arm portion 12 baselines surround be feature.
In the 3rd invention, with regard to the sheet material 1a before the extrusion modling, engagement pawl 14 in the rectangular area in this sheet material 1a four corners, forms the delta-shaped region that becomes the angle again.For this reason, rectangle sheet material 1a can be effectively used to corner portion, and the corner portion of rectangle sheet material 1a no longer needs outstanding engagement pawl 14.
The 4th invention is that with engagement pawl 14, the central part that is positioned at plat part 13 ora terminalis lines is a feature in the T type branching joint of the 3rd invention.
In the 4th invention, overlapped plat part 13, because superimposed in the central authorities of ora terminalis line portion of this plat part 13 by engagement pawl 14, so, can keep plat part 13 unchangeably.
The 5th invention is that with engagement pawl 14, forming the narrow more triangle of its width of ora terminalis line that leaves plat part 13 more is feature in the T type branching joint of the 4th invention.
In the 5th invention, because engagement pawl 14 can be formed on the delta-shaped region similar substantially, so can support extremely unchangeably on the full surface of plat part 13 almost to plat part 13.
The 6th invention is in the T type branching joint of the 1st invention, in person in charge portion 11 and arm portion 12, is provided with embedding part 11a, the 12a of the pipe P of chimeric insertion, is feature than embedding part 11a, small diameter part 11b, 12b that the 12a diameter is thinner.
In the 6th invention, in person in charge portion 11 and the arm portion 12, the embedding part 11a of the pipe P of chimeric insertion, 12a back are provided with than its thinner small diameter part 11b, 12b, so it is dark or shallow excessively to prevent that pipe P from inserting.
The effect of-invention-
According to above-mentioned the 1st invention, can suppress elastic after effect after the extrusion modling by the engagement pawl 14 that superimposed overlapped plat part 13 is set, can make gap between the superposed surfaces minimum and keep certain, so when welding, can flow into welding consumables equably and solidify to above-mentioned gap.Therefore, welding quality is stable, has improved weld strength.Also fully can use when therefore, connecting the high pressure refrigerant pipe P of coolant piping.
Also have because by engagement pawl 14 superimposed plat part 13, so even if one one ground welding pipe P joint can not be out of shape yet, so one one of three pipe P are connected to become possibility respectively.And the same as before, it also is possible that three pipe arrangements weld together.Therefore, as long as according to the present invention, just can improve the efficient of welding.
According to 2 inventions of above-mentioned ground, because form elastic after effect after engagement pawl 14 just can prevent extrusion modling, so need not form connection pawl 14 the both sides of this plat part 13 one of two sides of overlapping plat part 13.Therefore, can make the formation of T type branching joint become simple.
According to above-mentioned the 3rd invention, is tip by making plat part 13 with the straight line of the tip of the tip that connects person in charge portion 11 and arm portion 12, and be formed on the subtriangular zone that the baseline by this ora terminalis line and arm portion 12 surrounds, engagement pawl 14 is formed in the delta-shaped region in sheet material 1a middle plateform portion 13 outsides before the extrusion modling., the sheet material 1a that comprises engagement pawl 14 can be cut from the rectangle material plate effectively for this reason, prevented the waste of material and increasing of cost.
According to above-mentioned the 4th invention, superimposed by engagement pawl 14 by making overlapped plat part 13 in the central authorities of ora terminalis line portion of this plat part 13, can be unchangeably support plate portion 13 mutually, make welding stable, await the raising of weld strength.
According to above-mentioned the 5th invention because engagement pawl 14 can be formed with the similar substantially delta-shaped region of plat part 13 in, so can support mutually extremely unchangeably, more can make welding stable on the full surface of plat part 13, weld strength improves.
According to above-mentioned the 6th invention, embedding part 11a, 12a by being provided with chimeric insertion person in charge portion 11 and arm portion 12 and small diameter part 11b, the 12b thinner than embedding part 11a, 12a can prevent that the mistake that pipe P inserts is dark or shallow excessively.For example, patent documentation 1 is put down in writing, and makes a part of annular projection of pipe P prevent that insertion is too dark or too shallow, and still, the end face of pipe P of the present invention does not just need complicated like this processing, has made the simple structure change.
Description of drawings
Fig. 1 is the elevation that has connected the state of pipe on the related T type branching joint of embodiments of the present invention.
Fig. 2 is the planimetric map of Fig. 1.
Fig. 3 is the right side elevational view of Fig. 1.
Fig. 4 is the major component sectional drawing (the IV-IV line sectional drawing of Fig. 3) of T type branching joint.
Fig. 5 is the V-V line sectional drawing of Fig. 1.
Fig. 6 is the VI-VI line sectional drawing of Fig. 1.
Fig. 7 is the elevation of the variation of presentation graphs 1.
Fig. 8 is the tectonic maps of the T type branching joint before the expression.Fig. 8 (A) is an elevation.Fig. 8 (B) is a side elevational view.Fig. 8 (C) is the central longitudinal sectional drawing.
(symbol description)
1 T type branching joint
1a sheet material
11 main pipe portions
The 11a embedding part
The 11b thin tube part
12 arm portions
The 12a embedding part
The 12b thin tube part
13 plat parts
14 connect pawl
Embodiment
Below, based on the description of drawings embodiments of the present invention.
Fig. 1 is the elevation that has connected the state of pipe on the related T type branching joint of embodiments of the present invention.Fig. 2 is the planimetric map of Fig. 1.Fig. 3 is the right side elevational view of Fig. 1.Also have, Fig. 4 is the major component sectional drawing (the IV-IV line sectional drawing of Fig. 3) of T type branching joint.Fig. 5 is the V-V line sectional drawing of Fig. 1.Fig. 6 is the VI-VI line sectional drawing of Fig. 1.
Such as shown in the figure, this T type branching joint 1, have two ends comprise pair of openings person in charge portion 11 and with the arm portion 12 of person in charge portion 11 orthogonals.This T type branching joint 1, with the rectangular section configuration of the center line of person in charge portion 11, section becomes approximate U type as shown in Figure 5 in the position of passing through arm portion 12 center lines, and the end positions of person in charge portion 11 section as shown in Figure 6 becomes approximate C type.
Above-mentioned T type branching joint 1, crooked sheet material 1a, the two ends combination along the overlapping sheet material 1a in plane of center line by person in charge portion 11 and arm portion 12 center lines forms person in charge portion 11 and arm portion 12.Also have, the bight of person in charge portion 11 and arm portion 12, as Fig. 4 obviously shows, the overlapped in twos formation plat part 13 of the corner portion of sheet material 1a.
And,, on this T type branching joint 1, also have the engagement pawl 14 that makes overlapped plat part 13 superimposed as feature of the present invention.Above-mentioned engagement pawl 14 is formed on of overlapping plat part 13.Specifically, among Fig. 1, the plat part 13,13 that arm portion 12 right sides are overlapping has formed engagement pawl 14 (with reference to Fig. 4) on the plat part 13 of rear side, and the plat part 13,13 that arm portion 12 left sides are overlapping has formed engagement pawl 14 on the plat part 13 of front side.This engagement pawl 14, this engagement pawl 14 by turning back along relative plat part 13 outer surfaces, is clamped relative plat part 13, superimposed two plat parts 13.
Above-mentioned plat part 13, for being the ora terminalis line at straight line with the tip of the tip that connects person in charge portion 11 and arm portion 12, and by the subtriangular zone that baseline surrounded of this ora terminalis line and arm portion 12.Also have, above-mentioned engagement pawl 14 is arranged on the middle position of above-mentioned plat part 13 ora terminalis lines, and is more away from the narrow more triangle of its width of ora terminalis line of plat part 13.Specifically, in the present embodiment, engagement pawl 14 forms the smaller triangle with plat part 13 approximate similarities.
On the other hand, in above-mentioned person in charge portion 11 and the arm portion 12, be provided with embedding part 11a, the 12a of chimeric insertion pipe P and small diameter part 11b, the 12b thinner than the diameter of embedding part 11a, 12a.This small diameter part 11b, 12b dwindle the diameter of the depths of embedding part 11a, 12a to a certain extent and to make.
In this mode of execution, be to have made T type branching joint with a sheet material 1a by extrusion modling, like this, the plat part 13 that the bight between person in charge portion 11 and arm portion 12 is overlapped just becomes by the superimposed state of engagement pawl 14.Therefore, can resist the elastic after effect after the extrusion modling, it be minimum and necessarily keeping gap between the superposed surfaces.For this reason, welding consumables can flow into equably to above-mentioned gap and solidify during welding, so welding quality just can be stabilized.Its result has improved weld strength, even if also can use fully under the situation of the pipe P of the mobile high pressure refrigerant of connection coolant piping.
Also have, in the past, if the words T type branching joint of one one ground welding of pipe P will be out of shape, must weld together by three pipe P, and in the present embodiment, by with engagement pawl 14 superimposed plat part 13, even if one one ground welding pipe P just becomes possibility.And with in the past the same, it also is possible that three pipe arrangements weld together.Therefore, mode that can corresponding operation is selected, and just can improve the operating efficiency of welding.
Also have, in the present embodiment, just, need not form engagement pawl 14 this plat part 13 both sides by the elastic after effect that is formed on after engagement pawl 14 on of overlapped plat part 13 just can prevent extrusion modling, so, simplify the possibility that is constructed to of T type branching joint.Also have, by making plat part 13, with the tip of connection person in charge portion 11 and the tip of arm portion 12 is the ora terminalis line, and form the subtriangular zone that baseline enclosed by this ora terminalis line and arm portion 12, and make engagement pawl 14 be formed on the delta-shaped region in the outside of the preceding sheet material 1a middle plateform portion 13 of extrusion modling, for this reason, just can cut the sheet material 1a that comprises engagement pawl 14 from the rectangle material plate effectively.Therefore, just can economize material, prevent that cost from rising.
Have again, in this embodiment, with overlapped plat part 13, in the time of by engagement pawl 14 combinations of the central authorities of ora terminalis line portion of this plat part 13, engagement pawl 14 is formed triangle with plat part 13 approximate similarities, plat part 13 can be supported in it is almost comprehensive unchangeably, the stabilization of welding and the raising of weld strength become possibility.
Also have, in this mode of execution, embedding part 11a, 12a by being provided with chimeric insertion person in charge portion 11 and arm portion 12 and small diameter part 11b, the 12b thinner than embedding part 11a, 12a can prevent that the mistake that pipe P inserts is dark or shallow excessively.For example, patent documentation 1 is put down in writing, and makes a part of annular projection of pipe P prevent that insertion is too dark or too shallow, and still, the end face of pipe P does not just need complicated like this processing, has made the simple structure change.
(other mode of execution)
The present invention, the above structure also can be made following form.
For example, the shape of engagement pawl 14 is changed into shape shown in Figure 7 and also can.In this example, engagement pawl 14 is formed for rectangular, be arranged on the central authorities of plat part 13 ora terminalis lines.Also have, in the drawings, all form engagement pawl 14 on the plat part 13 in the back in the right side and the left side of arm portion 12.If reduce the compressive strength how many engagement pawls 14 will reduce T type branching joint 1, still, the course of working of the engagement pawl 14 that turns back itself is carried out easily, so more can improve operation like this.
And above mode of execution is best example in essence, and still, the present invention has more than and is limited to its suitable thing, purposes scope.
The possibility of utilizing on-the industry-
As described above, the present invention, the T-shaped branching joint of extrusion modling being made type is Useful.
Claims (6)
1. T type branching joint, have person in charge portion (11) that two ends are pair of openings and with the arm portion (12) of person in charge portion (11) orthogonal in, a crooked sheet material (1a), along forming person in charge portion (11) and arm portion (12) by overlapping two end part, the plane of person in charge portion (11) center line and arm portion (12) center line in conjunction with sheet material (1a)
Bight between person in charge portion (11) and arm portion (12), the overlapped in twos formation plat part of the corner portion of sheet material (1a) (13) is characterized by:
Has the engagement pawl (14) that makes overlapped plat part (13) superimposed.
2. T type branching joint according to claim 1 is characterized by:
Engagement pawl (14) on a flat board that is formed on overlapped plat part (13), simultaneously, turns back along another flat board of this plat part (13), forms the structure of superimposed two plat parts (13).
3. T type branching joint according to claim 2 is characterized by:
Plat part (13) is the ora terminalis line with the straight line that connects person in charge's portion's (11) tip and arm portion (12) tip, and is formed on the subtriangular zone that is surrounded by this ora terminalis line and arm portion (12) baseline.
4. T type branching joint according to claim 3 is characterized by:
Engagement pawl (14) is positioned at the central authorities of plat part (13) ora terminalis line.
5. T type branching joint according to claim 4 is characterized by:
Engagement pawl (14) forms and leaves the narrow more triangle of plat part (13) its width of ora terminalis line more.
6. T type branching joint according to claim 1 is characterized by:
In person in charge portion (11) and the arm portion (12), be provided with the embedding part (11a, 12a) and the diameter small diameter part (11b, 12b) thinner of chimeric insertion pipe (P) than embedding part (11a, 12a).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004159114A JP3750684B2 (en) | 2004-05-28 | 2004-05-28 | T-type branch fitting |
| JP159114/2004 | 2004-05-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1806143A true CN1806143A (en) | 2006-07-19 |
| CN100470109C CN100470109C (en) | 2009-03-18 |
Family
ID=35450967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005800004976A Expired - Fee Related CN100470109C (en) | 2004-05-28 | 2005-05-27 | T-type branching joint |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US7422247B2 (en) |
| EP (1) | EP1645791B1 (en) |
| JP (1) | JP3750684B2 (en) |
| KR (1) | KR100737076B1 (en) |
| CN (1) | CN100470109C (en) |
| AU (1) | AU2005248226B2 (en) |
| ES (1) | ES2409344T3 (en) |
| WO (1) | WO2005116510A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008034294A1 (en) * | 2006-09-19 | 2008-03-27 | Luhao Leng | A method for making handtool head and a rolling mill thereof |
| CN108361461A (en) * | 2018-03-08 | 2018-08-03 | 蒋央芳 | A kind of multiple way union |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8746746B1 (en) * | 2013-02-28 | 2014-06-10 | Charlie J. Schafer | Nestable connector |
| EP3234424B1 (en) * | 2014-12-19 | 2022-03-16 | Repligen Corporation | Encapsulated system for pressurized fluid processes |
| FI128639B (en) * | 2019-12-20 | 2020-09-15 | Valmet Technologies Oy | Scrubber for exhaust gas cleaning |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1020123A (en) * | 1910-04-09 | 1912-03-12 | Arthur Brampton | Conduit-fitting for electrical and other purposes. |
| US1921584A (en) * | 1931-07-06 | 1933-08-08 | Mueller Brass Co | Mandrel |
| US1850049A (en) * | 1932-01-29 | 1932-03-15 | Jr Edward S Cornell | Pipe fitting and method of making the same |
| US2040628A (en) * | 1934-08-03 | 1936-05-12 | Chase Companies Inc | Branch-fitting and method of making |
| US2243809A (en) * | 1934-10-03 | 1941-05-27 | W S A Inc | Method of making hollow wrought metal articles |
| US2183271A (en) * | 1938-03-07 | 1939-12-12 | Wendel Frans Bertil | Pipe fitting and method of producing the same |
| US3944260A (en) * | 1975-01-08 | 1976-03-16 | Petroczky Frank G | Pipe repair fittings |
| JP2602060B2 (en) * | 1988-05-24 | 1997-04-23 | 臼井国際産業株式会社 | Manufacturing method of branch pipe joint |
| JP2660427B2 (en) * | 1988-07-28 | 1997-10-08 | 臼井国際産業株式会社 | Branch pipe fitting |
| JP3022970B2 (en) * | 1989-06-02 | 2000-03-21 | 臼井国際産業株式会社 | Joint body for branch connection, joint and connection method thereof |
| JPH08219355A (en) * | 1995-02-10 | 1996-08-30 | Girufuii Kk | Vinyl chloride steel pipe joint and manufacture thereof |
| CN2315412Y (en) * | 1997-12-07 | 1999-04-21 | 柳光坤 | Three-way connector |
| CA2368639A1 (en) * | 1999-04-13 | 2000-10-19 | Joseph Mckenna | Method of forming t-connectors |
| CN2435615Y (en) * | 2000-03-24 | 2001-06-20 | 湘潭晨辉化学建材有限责任公司 | Plastic and alloy regular T-branch pipe fitting |
| CN2477927Y (en) * | 2001-01-20 | 2002-02-20 | 中国航天工业供销东北公司 | Thermal molten insertion pipeline |
| CN2495883Y (en) * | 2001-09-07 | 2002-06-19 | 薛家谦 | Metal and plastic composite tube |
-
2004
- 2004-05-28 JP JP2004159114A patent/JP3750684B2/en not_active Expired - Fee Related
-
2005
- 2005-05-27 AU AU2005248226A patent/AU2005248226B2/en not_active Ceased
- 2005-05-27 CN CNB2005800004976A patent/CN100470109C/en not_active Expired - Fee Related
- 2005-05-27 KR KR1020067000748A patent/KR100737076B1/en not_active IP Right Cessation
- 2005-05-27 US US10/564,152 patent/US7422247B2/en not_active Expired - Fee Related
- 2005-05-27 EP EP05743674.3A patent/EP1645791B1/en not_active Not-in-force
- 2005-05-27 ES ES05743674T patent/ES2409344T3/en active Active
- 2005-05-27 WO PCT/JP2005/009778 patent/WO2005116510A1/en not_active Application Discontinuation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008034294A1 (en) * | 2006-09-19 | 2008-03-27 | Luhao Leng | A method for making handtool head and a rolling mill thereof |
| CN108361461A (en) * | 2018-03-08 | 2018-08-03 | 蒋央芳 | A kind of multiple way union |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1645791B1 (en) | 2013-04-24 |
| JP3750684B2 (en) | 2006-03-01 |
| WO2005116510A1 (en) | 2005-12-08 |
| KR100737076B1 (en) | 2007-07-06 |
| CN100470109C (en) | 2009-03-18 |
| EP1645791A1 (en) | 2006-04-12 |
| US20070102925A1 (en) | 2007-05-10 |
| AU2005248226A1 (en) | 2005-12-08 |
| JP2005337434A (en) | 2005-12-08 |
| KR20060027864A (en) | 2006-03-28 |
| US7422247B2 (en) | 2008-09-09 |
| EP1645791A4 (en) | 2012-03-14 |
| AU2005248226B2 (en) | 2007-11-22 |
| ES2409344T3 (en) | 2013-06-26 |
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